Eating belts

[Im_Strokin_ur_Cummins]

Ok so im going on to the 3rd belt for my 250 and dont know why it keeps eating them. The first belt was on for less then a month before it got chewed up and had stringers flying around It started squeaking just before it went. Now the second belt started squeaking about 3 weeks ago (after 6 months) put belt dressing on it and it cured the problem till tonight, going to fuel up i heard the wack wack of stringers agian sure enough only this time they were seperate from the belt and wrapped around the fan. Both times it is the front of the belt nearest the fan that gets chewed up. Anyone know what the issue is that would be causing this?

[Mikey's250]

I know you probably want more detail but something is out of line, like a wore out pulley

[Bend6.0]

Start the truck, open the hood, look at the belt doing its thing. The belt tension-er is probably not in line with the pulleys. The belt tension-er is usually the culprit to premature belt ware; especially with your miles.

[C.Gift]

Originally Posted by Bend6.0

Start the truck, open the hood, look at the belt doing its thing. The belt tension-er is probably not in line with the pulleys. The belt tension-er is usually the culprit to premature belt ware; especially with your miles.

Agreed. The only way to tell is to start it and look for anything unusual. I would expect it to be the tensioner, I've only ever seen one 7.3 with a crazy pulley wobble. But it never hurts to check everything out.

Good luck with it!

[Zaairman]

Time for a new belt tensioner....

[Im_Strokin_ur_Cummins]

thanks guys ill check it out

[ianstew]

i agree, the tensioner

[Quickhorse]

Same thing happened to me . . . i replaced the alternator, ac clutch assembly, water pump, idler pulley, belt twice and lastly I noticed the tensioner was about to fall off the truck it was so bad . . . weird . . .

My advice would be to try the tensioner first and save yourself a lot of money unlike me. It is nice having all the new stuff on there and upgraded alternator but it came at a price.

Also, if you upgrade the alternator make sure you grind the case down so that it bolts up flush . . . don't ask me how i know.